High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores
Records of chemical impurities from ice cores enable us to reconstruct the past deposition of aerosols onto polar ice sheets and alpine glaciers. Through this they allow us to gain insight into changes of the source, transport and deposition processes that ultimately determine the deposition flux at...
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European Geosciences Union
2022
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ftnerc:oai:nora.nerc.ac.uk:531305 2023-05-15T16:27:34+02:00 High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores Erhardt, T. Bigler, M. Federer, U. Gfeller, G. Leuenberger, D. Stowasser, O. Röthlisberger, R. Schüpbach, S. Ruth, U. Twarloh, B. Wegner, A. Goto-Azuma, K. Kuramoto, T. Kjær, H.A. Vallelonga, P.T. Siggaard-Andersen, M-L. Hansson, M.E. Benton, A.K. Fleet, L.G. Mulvaney, R. Thomas, E.R. Abram, N. Stocker, T.F. Fischer, H. 2022-03-16 text http://nora.nerc.ac.uk/id/eprint/531305/ https://nora.nerc.ac.uk/id/eprint/531305/1/essd-14-1215-2022.pdf https://essd.copernicus.org/articles/14/1215/2022/essd-14-1215-2022.html en eng European Geosciences Union https://nora.nerc.ac.uk/id/eprint/531305/1/essd-14-1215-2022.pdf Erhardt, T.; Bigler, M.; Federer, U.; Gfeller, G.; Leuenberger, D.; Stowasser, O.; Röthlisberger, R.; Schüpbach, S.; Ruth, U.; Twarloh, B.; Wegner, A.; Goto-Azuma, K.; Kuramoto, T.; Kjær, H.A.; Vallelonga, P.T.; Siggaard-Andersen, M-L.; Hansson, M.E.; Benton, A.K.; Fleet, L.G.; Mulvaney, R. orcid:0000-0002-5372-8148 Thomas, E.R. orcid:0000-0002-3010-6493 Abram, N.; Stocker, T.F.; Fischer, H. 2022 High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores. Earth System Science Data, 14 (3). 1215-1231. https://doi.org/10.5194/essd-14-1215-2022 <https://doi.org/10.5194/essd-14-1215-2022> cc_by_4 CC-BY Publication - Article PeerReviewed 2022 ftnerc https://doi.org/10.5194/essd-14-1215-2022 2023-02-04T19:52:39Z Records of chemical impurities from ice cores enable us to reconstruct the past deposition of aerosols onto polar ice sheets and alpine glaciers. Through this they allow us to gain insight into changes of the source, transport and deposition processes that ultimately determine the deposition flux at the coring location. However, the low concentrations of the aerosol species in the ice and the resulting high risk of contamination pose a formidable analytical challenge, especially if long, continuous and highly resolved records are needed. Continuous flow analysis, CFA, the continuous melting, decontamination and analysis of ice-core samples has mostly overcome this issue and has quickly become the de facto standard to obtain high-resolution aerosol records from ice cores after its inception at the University of Bern in the mid-1990s. Here, we present continuous records of calcium (Ca2+), sodium (Na+), ammonium (NH+4), nitrate (NO-3) and electrolytic conductivity at 1 mm depth resolution from the NGRIP (North Greenland Ice Core Project) and NEEM (North Greenland Eemian Ice Drilling) ice cores produced by the Bern Continuous Flow Analysis group in the years 2000 to 2011 (Erhardt et al., 2021). Both of the records were previously used in a number of studies but were never published in full 1 mm resolution. Alongside the 1 mm datasets we provide decadal averages, a detailed description of the methods, relevant references, an assessment of the quality of the data and its usable resolution. Along the way we will also give some historical context on the development of the Bern CFA system. The data is available in full 1 mm and 10-year-averaged resolution on PANGAEA (https://doi.org/10.1594/PANGAEA.935838, Erhardt et al., 2021) Article in Journal/Newspaper Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project Natural Environment Research Council: NERC Open Research Archive Greenland Earth System Science Data 14 3 1215 1231 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Records of chemical impurities from ice cores enable us to reconstruct the past deposition of aerosols onto polar ice sheets and alpine glaciers. Through this they allow us to gain insight into changes of the source, transport and deposition processes that ultimately determine the deposition flux at the coring location. However, the low concentrations of the aerosol species in the ice and the resulting high risk of contamination pose a formidable analytical challenge, especially if long, continuous and highly resolved records are needed. Continuous flow analysis, CFA, the continuous melting, decontamination and analysis of ice-core samples has mostly overcome this issue and has quickly become the de facto standard to obtain high-resolution aerosol records from ice cores after its inception at the University of Bern in the mid-1990s. Here, we present continuous records of calcium (Ca2+), sodium (Na+), ammonium (NH+4), nitrate (NO-3) and electrolytic conductivity at 1 mm depth resolution from the NGRIP (North Greenland Ice Core Project) and NEEM (North Greenland Eemian Ice Drilling) ice cores produced by the Bern Continuous Flow Analysis group in the years 2000 to 2011 (Erhardt et al., 2021). Both of the records were previously used in a number of studies but were never published in full 1 mm resolution. Alongside the 1 mm datasets we provide decadal averages, a detailed description of the methods, relevant references, an assessment of the quality of the data and its usable resolution. Along the way we will also give some historical context on the development of the Bern CFA system. The data is available in full 1 mm and 10-year-averaged resolution on PANGAEA (https://doi.org/10.1594/PANGAEA.935838, Erhardt et al., 2021) |
format |
Article in Journal/Newspaper |
author |
Erhardt, T. Bigler, M. Federer, U. Gfeller, G. Leuenberger, D. Stowasser, O. Röthlisberger, R. Schüpbach, S. Ruth, U. Twarloh, B. Wegner, A. Goto-Azuma, K. Kuramoto, T. Kjær, H.A. Vallelonga, P.T. Siggaard-Andersen, M-L. Hansson, M.E. Benton, A.K. Fleet, L.G. Mulvaney, R. Thomas, E.R. Abram, N. Stocker, T.F. Fischer, H. |
spellingShingle |
Erhardt, T. Bigler, M. Federer, U. Gfeller, G. Leuenberger, D. Stowasser, O. Röthlisberger, R. Schüpbach, S. Ruth, U. Twarloh, B. Wegner, A. Goto-Azuma, K. Kuramoto, T. Kjær, H.A. Vallelonga, P.T. Siggaard-Andersen, M-L. Hansson, M.E. Benton, A.K. Fleet, L.G. Mulvaney, R. Thomas, E.R. Abram, N. Stocker, T.F. Fischer, H. High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores |
author_facet |
Erhardt, T. Bigler, M. Federer, U. Gfeller, G. Leuenberger, D. Stowasser, O. Röthlisberger, R. Schüpbach, S. Ruth, U. Twarloh, B. Wegner, A. Goto-Azuma, K. Kuramoto, T. Kjær, H.A. Vallelonga, P.T. Siggaard-Andersen, M-L. Hansson, M.E. Benton, A.K. Fleet, L.G. Mulvaney, R. Thomas, E.R. Abram, N. Stocker, T.F. Fischer, H. |
author_sort |
Erhardt, T. |
title |
High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores |
title_short |
High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores |
title_full |
High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores |
title_fullStr |
High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores |
title_full_unstemmed |
High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores |
title_sort |
high-resolution aerosol concentration data from the greenland northgrip and neem deep ice cores |
publisher |
European Geosciences Union |
publishDate |
2022 |
url |
http://nora.nerc.ac.uk/id/eprint/531305/ https://nora.nerc.ac.uk/id/eprint/531305/1/essd-14-1215-2022.pdf https://essd.copernicus.org/articles/14/1215/2022/essd-14-1215-2022.html |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project |
genre_facet |
Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project |
op_relation |
https://nora.nerc.ac.uk/id/eprint/531305/1/essd-14-1215-2022.pdf Erhardt, T.; Bigler, M.; Federer, U.; Gfeller, G.; Leuenberger, D.; Stowasser, O.; Röthlisberger, R.; Schüpbach, S.; Ruth, U.; Twarloh, B.; Wegner, A.; Goto-Azuma, K.; Kuramoto, T.; Kjær, H.A.; Vallelonga, P.T.; Siggaard-Andersen, M-L.; Hansson, M.E.; Benton, A.K.; Fleet, L.G.; Mulvaney, R. orcid:0000-0002-5372-8148 Thomas, E.R. orcid:0000-0002-3010-6493 Abram, N.; Stocker, T.F.; Fischer, H. 2022 High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores. Earth System Science Data, 14 (3). 1215-1231. https://doi.org/10.5194/essd-14-1215-2022 <https://doi.org/10.5194/essd-14-1215-2022> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/essd-14-1215-2022 |
container_title |
Earth System Science Data |
container_volume |
14 |
container_issue |
3 |
container_start_page |
1215 |
op_container_end_page |
1231 |
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1766016965452759040 |